Granite step stone stairs advantages: 1). Factory direct, Quarry owner 2). Ten years experience. 3). Good packing Stone Step:1.Color: grey, white, ... 85 degree, as requested, Thickness tolerance: +/-1mm, +/-1.5cm or +/-2mm, The quality requirements must be comfirmed ... our company:Slab, tiles, countertop, paving stone, curbstone, monument, etc Granite step stone stairs with high quality and low price